When it comes to cars 30 years and older, it's tough to find them in great shape. Which is part of what makes this 1976 Mercedes-Benz 406 Unimog so appealing. Formerly used as an aircraft tug by the German Army, it spent its active duty garaged inside hangars, preserving its rugged body. The original 84hp six-cylinder diesel engine has approximately 3,300 hours on it, and is joined by a converter clutch, a power take-off shaft at the front, a "Schmidt" plate for attaching tools like a snowplow or loader, seat belts in the front and rear, new wheels and tires, refurbished seats, the unfortunately detached original speedometer, and a guarantee to draw the attention of off-roaders everywhere.